Onan Generator Carbon Knock

[Mark Ruset]

Thanks Darrin
I'm feeling alot more confident that carbon is my culprit especially since the generator has not seen any real use in the past 3 years. I"m going to try a spray through the carb first on a hot engine and if that fails I'll try going through the spark plug hole and fill the cylinders up with a cleaner and trying to dissolve the carbon